MOST COMMON TYPES OF SEWER PROBLEMS Potential Issues That May Lead to a Malfunctioning or Damaged Sewer Root Intrusions. Back Pitched Pipe. Misaligned Sewer Pipe. Blockage—Small Debris, Sanitary Wipes, or Grease. Early Stages of a Broken or Collapsed Sewer Line. If you have any questions specific to your sewer backup or type of connection it’s suggested to speak with a licensed plumber in Lakewood, CO to assist in diagnosing and resolving your issue. Source:- harriswatermainandsewers.com